/* ============================================================
   Cisco Certification Roadmap — shared stylesheet
   ============================================================ */
:root {
  --bg: #0b1220;
  --bg-soft: #101a2e;
  --card: #16223a;
  --card-hover: #1b2a47;
  --border: #24355a;
  --text: #e8eefb;
  --text-dim: #9fb0cc;
  --accent: #1ba0d7;        /* Cisco blue */
  --accent-2: #6cc04a;      /* success green */
  --warn: #f5a623;
  --danger: #e85d75;
  --radius: 14px;
  --maxw: 1100px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --glow: 0 0 24px rgba(27, 160, 215, 0.25);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

h1, h2, h3, .brand, .level-icon, .stat-card .num {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

/* Subtle animated grid backdrop */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(27,160,215,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,160,215,0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 30%, transparent 75%);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--maxw);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 10px;
}
.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: 0.5px;
}
.brand span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}
.nav-links a:hover { color: var(--text); background: var(--card); text-decoration: none; }
.nav-links a.active { color: #fff; background: var(--accent); }

/* ---------- Hero ---------- */
.hero {
  padding: 72px 0 56px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% -10%, rgba(27,160,215,0.25), transparent),
    var(--bg);
}
.hero h1 { font-size: clamp(1.8rem, 4.5vw, 3rem); line-height: 1.2; margin-bottom: 16px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #1ba0d7, #6cc04a, #1ba0d7);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer {
  to { background-position: 200% center; }
}
.hero p.lead {
  max-width: 720px;
  margin: 0 auto 28px;
  color: var(--text-dim);
  font-size: 1.1rem;
}
.badge {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 10px;
  font-weight: 700;
  background: linear-gradient(135deg, #1ba0d7, #1577b8);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: var(--glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}
.btn:hover {
  filter: brightness(1.12);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 0 36px rgba(27, 160, 215, 0.45);
}
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }

/* ---------- Cert hero (per-page) ---------- */
.cert-hero {
  padding: 56px 0 36px;
  background:
    radial-gradient(ellipse 55% 60% at 50% -10%, rgba(27,160,215,0.22), transparent),
    var(--bg);
}
.cert-hero .level-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-2);
  border: 1px solid var(--accent-2);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.cert-hero h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); margin-bottom: 10px; }
.cert-hero .exam-code { color: var(--accent); font-weight: 700; }
.cert-hero p { color: var(--text-dim); max-width: 800px; }

/* ---------- Stat / fact cards ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 28px 0;
}
.stat-card {
  background: linear-gradient(160deg, rgba(27,160,215,0.08), rgba(22,34,58,0.85));
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--glow);
}
.stat-card .num { font-size: 1.4rem; font-weight: 800; color: var(--accent); }
.stat-card .lbl { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }

/* ---------- Sections ---------- */
section.block { padding: 44px 0; border-top: 1px solid var(--border); }
section.block h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
}
section.block h2 .hash { color: var(--accent); }
section.block > .container > p.sub { color: var(--text-dim); margin-bottom: 26px; max-width: 820px; }

/* ---------- Syllabus domains ---------- */
.domain {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.domain summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 1.02rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  list-style: none;
}
.domain summary::-webkit-details-marker { display: none; }
.domain summary:hover { background: var(--card-hover); }
.domain summary .weight {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent);
  background: rgba(27,160,215,0.12);
  border: 1px solid rgba(27,160,215,0.4);
  padding: 2px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.domain .topics { padding: 4px 20px 18px; border-top: 1px solid var(--border); }
.topic {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 4px;
  border-bottom: 1px dashed rgba(36,53,90,0.6);
  font-size: 0.95rem;
}
.topic:last-child { border-bottom: none; }
.topic input[type="checkbox"] {
  margin-top: 5px;
  width: 16px;
  height: 16px;
  accent-color: var(--accent-2);
  cursor: pointer;
  flex-shrink: 0;
}
.topic label { cursor: pointer; color: var(--text); }
.topic input:checked + label { color: var(--text-dim); text-decoration: line-through; }
.topic .why {
  display: block;
  font-size: 0.82rem;
  color: var(--text-dim);
}
.topic .why strong { color: var(--warn); font-weight: 600; }

/* ---------- Progress bar ---------- */
.progress-wrap {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
}
.progress-wrap .progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-weight: 600;
}
.progress-bar {
  height: 10px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar .fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* ---------- Lab cards ---------- */
.lab-grid { display: grid; gap: 16px; }
.lab-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.lab-card:hover {
  transform: translateY(-3px) scale(1.005);
  box-shadow: var(--glow);
  border-color: var(--accent);
}
.lab-card h3 { font-size: 1.05rem; margin-bottom: 6px; }
.lab-card h3 .lab-num { color: var(--accent); }
.lab-card p { font-size: 0.92rem; color: var(--text-dim); margin-bottom: 8px; }
.lab-card .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag {
  font-size: 0.74rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.tag.tool { color: var(--accent); border-color: rgba(27,160,215,0.4); }
.tag.scenario { color: var(--warn); border-color: rgba(245,166,35,0.4); }
.lab-card .realworld {
  margin-top: 10px;
  padding: 10px 14px;
  background: rgba(245,166,35,0.07);
  border-left: 3px solid var(--warn);
  border-radius: 0 8px 8px 0;
  font-size: 0.88rem;
}
.lab-card .realworld strong { color: var(--warn); }

/* ---------- Tool cards ---------- */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}
.tool-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow);
  border-color: var(--accent);
}
.tool-card h3 { font-size: 1rem; margin-bottom: 6px; color: var(--accent); }
.tool-card p { font-size: 0.88rem; color: var(--text-dim); }
.tool-card .cost { display: none; }

/* ---------- Roadmap (index) ---------- */
.roadmap { display: grid; gap: 18px; }
.roadmap-card {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 18px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.roadmap-card:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--glow); }
.roadmap-card:hover .level-icon { box-shadow: 0 0 20px rgba(27,160,215,0.5); transform: scale(1.06); }
.roadmap-card .level-icon { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.roadmap-card .level-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  background: var(--bg-soft);
  border: 2px solid var(--accent);
  color: var(--accent);
}
.roadmap-card h3 { font-size: 1.15rem; }
.roadmap-card h3 small { color: var(--text-dim); font-weight: 500; }
.roadmap-card p { color: var(--text-dim); font-size: 0.92rem; }
.roadmap-card .salary { color: var(--accent-2); font-weight: 700; font-size: 0.9rem; }
.roadmap-card .go { font-size: 1.5rem; color: var(--accent); }

/* ---------- Sell-yourself / career ---------- */
.sell-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.sell-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.sell-card h3 { font-size: 1rem; color: var(--accent-2); margin-bottom: 10px; }
.sell-card ul { padding-left: 18px; font-size: 0.9rem; color: var(--text-dim); }
.sell-card ul li { margin-bottom: 8px; }
.sell-card ul li strong { color: var(--text); }

/* ---------- Tables ---------- */
table.info {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
}
table.info th, table.info td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
table.info th { background: var(--bg-soft); color: var(--accent); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 1px; }
table.info tr:last-child td { border-bottom: none; }

/* ---------- Callouts ---------- */
.callout {
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  margin: 18px 0;
  font-size: 0.93rem;
}
.callout.tip { border-left: 4px solid var(--accent-2); }
.callout.warn { border-left: 4px solid var(--warn); }
.callout strong { color: var(--accent-2); }
.callout.warn strong { color: var(--warn); }

/* ---------- Prev / next ---------- */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 36px 0;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.pager a {
  flex: 1;
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  color: var(--text);
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager a small { display: block; color: var(--text-dim); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 1px; }
.pager a.next { text-align: right; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ---------- Motion / reveal animations ---------- */
.sell-card { transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
.sell-card:hover { transform: translateY(-4px); border-color: var(--accent-2); box-shadow: 0 0 24px rgba(108,192,74,0.2); }

.progress-bar .fill {
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent));
  background-size: 200% auto;
  animation: shimmer 3s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Learning loop strip ---------- */
.loop-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin: 26px 0;
}
.loop-step {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  font-weight: 700;
}
.loop-step.alt { color: var(--accent-2); }
.loop-arrow { color: var(--text-dim); font-weight: 700; }

/* ---------- Dashboard ---------- */
.dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}
.dash-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.dash-card .lbl {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.dash-card .val { font-weight: 700; font-size: 1.02rem; line-height: 1.4; }
.dash-card .val a { color: var(--accent); }

/* ---------- Lab status & difficulty ---------- */
.status-select {
  background: var(--bg-soft);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-weight: 600;
  font-family: var(--font);
  font-size: 0.85rem;
  cursor: pointer;
}
.status-select.s-doing { border-color: var(--warn); color: var(--warn); }
.status-select.s-done { border-color: var(--accent-2); color: var(--accent-2); }

.diff {
  font-size: 0.74rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.diff.beginner { background: rgba(108,192,74,0.12); color: var(--accent-2); border: 1px solid rgba(108,192,74,0.4); }
.diff.core { background: rgba(27,160,215,0.12); color: var(--accent); border: 1px solid rgba(27,160,215,0.4); }
.diff.challenge { background: rgba(245,166,35,0.12); color: var(--warn); border: 1px solid rgba(245,166,35,0.4); }

.lab-detail { font-size: 0.9rem; color: var(--text-dim); margin: 7px 0; }
.lab-detail strong { color: var(--text); }
.lab-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 4px; }

pre.code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.5;
  margin: 8px 0;
  color: var(--text);
}
code { color: var(--accent); font-size: 0.92em; }

/* ---------- Mistake journal & weekly log ---------- */
.mistake-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--danger);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.mistake-card h3 { color: var(--danger); margin-bottom: 8px; font-size: 1.02rem; }
.mistake-card .field { font-size: 0.92rem; margin: 6px 0; color: var(--text-dim); }
.mistake-card .field strong { color: var(--text); }

.week-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-2);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.week-card h3 { color: var(--accent-2); margin-bottom: 8px; font-size: 1.05rem; }
.week-card .field { font-size: 0.92rem; margin: 6px 0; color: var(--text-dim); }
.week-card .field strong { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 700px) {
  .roadmap-card { grid-template-columns: 60px 1fr; }
  .roadmap-card .go { display: none; }
  .roadmap-card .level-icon { width: 52px; height: 52px; font-size: 0.8rem; }
  .nav-links a { padding: 5px 8px; font-size: 0.82rem; }
}